FSE.09

In the 2020 season, the team introduced a mechanically improved version of the FSE.08 race car. The new electric formula uses a full-carbon monocoque from the 2019 car, complemented by a redesigned aerodynamic package and an entirely new solution for cooling the motors and power electronics. The battery cooling system was also modified, promising greater reliability in the Endurance race.

The car’s electronics also underwent significant innovations. One of the key improvements is the implementation of functional telemetry and the ability to measure the surface temperature of the tires. The entire electronic system was thoroughly revised, and the battery electronics were completely redesigned.

Unfortunately, due to the coronavirus pandemic that affected the world in 2020, this car was unable to fully showcase its potential on the track.

205 kg

WEIGHT (WITHOUT DRIVER)

87,8 kW

MAXIMUM POWER (RESTRICTED TO 80 kW BY THE COMPETITION RULES)

50 : 50 %

Weight distribution (front: rear)

Dimensions
Wheelbase
  • 1540 mm
Track width
  • 1296 / 1230 mm
Vehicle weight without driver
  • 205 kg
Weight distribution (front: rear)
  • 50 : 50 %
Frame
  • Sandwich structure composite monocoque made of carbon fabric with aluminum honeycomb and ROHACELL® foam core with chromium molybdenum high strength steel main hoop and TIG welded aluminum front hoop
Handling
Suspension
  • Independent all-wheel suspension
  • Double A-arms of unequal length on both axles
Damping
  • Push-rod type on both axles
  • Öhlins TTX 25 FSAE shock absorbers
Rims

  • Magnesium 10 ″ – OZ Formula Student Magnesium

Tires
  • Hoosier R10″
Brake system

  • Disc brakes on all wheels, 2-circuit system

  • Adjustable brake bias

  • Front 195 mm discs ISA Racing callipers radial fastening

  • Rear 185 mm discs, ISA Racing callipers radial fastening

Powertrain
Front motors
  • TG Drives (2×8,6kW)
  • Weight : 3,5kg
  • Maximum torque: 16,2 Nm
Back motors
  • TG Drives (2×35,3kW)
  • Weight : 8kg
  • Maximum torque : 48 Nm
Inverter
  • MiRy XBoss
Maximum speed
  • 10000 rpm rear motors
  • 9000 rpm front motors
Maximum power

  • 87,8 kW (limited to 80 kW according to Formula Student rules)

Maximum torque
  • 882 Nm to 60 km/h
Gearbox

  • Planetary gear (i = 6,95) at the front

  • Planetary gear (i = 6,71) at the rear


Diferential

  • Active electronic – each motor is controlled separately

Cooling

  • Water cooling of motors and power electronics, two cooling circuits

Battery pack

  • SONY VTC5A cells – electrical configuration 96s9p

  • Total energy 8,1 kWh – nominal voltage 346 V, maximum voltage 403 V

  • Own battery monitoring and management system

  • Own power and measuring electronics

  • Own battery box – Kevlar sandwich composite

Electronics
CAN bus
  • CAN1 : Data required for driving (pedal position, safety features, battery data, wheel sensors, steering wheel, etc.)
  • CAN2 : Data from the remaining sensors (temperature, diagnostic data, etc.)
Traction control
  • All wheel slip control
INS unit
  • inertial navigation system
  • Data acquisition for traction control
  • Possibility of more detailed driving analysis
Pedal unit
  • Evaluation of pedals by independent sensors
  • Safety functions
Steering wheel unit
  • Own GUI
  • Touch screen
  • Display of diagnostic data

Dashboard
  • Continuous display of important data (battery status, electrical protection status)
Motor controllers

  • MiRy XBoss, dual frequency converter, for power up to 2x100kW, two converters used

Automatic control
  • Automatic regulation of fan speed, power limitation at low battery charge, etc.

Team members

Josef Med

Team Captain

Ing. Vít Hlinovský, CSc.

Faculty Coordinator

Projektová skupina

Kateřina Antošová – group leader
Adam Čumrda
Tereza Plšková
Adéla Kubíková
Andrej Kružliak
Anna Faltysová
Jakub Sobotka
Lukáš Málek
Miroslav Martínek
Adam Procháska
Šimon Hána
Pavla Lásková

Elektrotechnická  skupina

Michal Kopiar – group leader
Jan Čančík
Boris Žifčák
Emil Jiří Tywoniak
Jakub Dvořák
Jan Veselý
Kryštof Cikhardt
Ladislav Spejchlík
Lukáš Strašík
Martin Čurda
Martin Edl
Martin Hejl
Mikuláš Ibl
Patrik Bachan
Petr Hainc
Ondřej Šereda
Rudolf Stanko
Šimon Hykl
Tomáš Nekvapil
Vojtěch Michal
Vojtěch Kotrba
Vojtěch Tecl
Vojtěch Krča
Anastasov Nikolov
Egor Pushkin
Vladimír Malý
Filip Machulda

Mechanická  skupina

Jakub Sedlář – group leader
Adam Zezula
Daniel Hrdinka
Ilya Chaban
Jan Plesník
Jiří Zubr
Jiří Teichman
Josef Med
Josef Kopecký
Lukáš Kolbaba
Matěj Crhán
Michal Miletín
Ondřej Velínský
Ondřej Kinter
Ondřej Štogl
Petr Sysel
Petr Kolovrátník
Radek Štěpánek
Radovan Juráš
Tomáš Vrbata
Tomáš Jedlička
Tomáš Krejčí

Partners